HA3KU — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving HA3KU, decoded by SO8OO in southeastern Poland. 105 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-18 and 2026-09-30.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 105 FT8 messages attributed to HA3KU as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 80 m (37%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-30 16:36 UTC
Observed FT8 message patterns
- Attributed sample
- 105 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -20 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 58.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with HA3KU in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to HA3KU
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JN86 · 47 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 521 km (approx.)
- Last such locator decoded
- 2026-09-30 16:29 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | HA3KU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-11 11:06 | 40m | - / +9 | HA1BF | -7 / - | 2 | ✓ Closing fragment |
| 10-04 18:26 | 40m | - / -14 | TA7MMI | -8 / - | 2 | Partial capture |
| 09-30 16:35 | 40m | -14 / - | IZ8PPI | - / -12 | 2 | Partial capture |
| 09-30 16:34 | 40m | - / - | DL7ARV | +3 / - | 8 | Partial capture |
| 09-30 16:32 | 40m | - / - | R7OV | -8 / - | 2 | Partial capture |
| 09-30 16:32 | 40m | -9 / -8 | PD4FL | -10 / -16 | 4 | ✓ Full exchange observed |
| 08-28 17:56 | 40m | 0 / - | EA5/DL1YTT | - / - | 2 | Partial capture |
| 08-28 17:51 | 40m | -4 / - | RA3TRR | - / - | 4 | Partial capture |
| 08-28 17:43 | 40m | -2 / -15 | PE1NPS | -4 / -9 | 6 | ✓ Full exchange observed |
| 08-28 17:41 | 40m | -3 / -6 | IZ0ZIP | -3 / -6 | 3 | ✓ Full exchange observed |
| 08-28 17:39 | 40m | -6 / - | 3Z100LKK | - / -7 | 2 | Partial capture |
| 08-28 17:24 | 40m | -9 / -16 | IR7MGGC | -9 / -11 | 4 | Partial capture |
| 08-28 17:21 | 40m | -10 / - | EA5IT | - / - | 3 | Partial capture |
| 08-28 17:17 | 40m | -6 / -20 | UA9FMT | -10 / -13 | 5 | ✓ Full exchange observed |
| 08-28 17:11 | 40m | +2 / - | US2YW | +11 / -4 | 4 | Partial capture |
| 08-28 17:09 | 40m | -1 / -8 | DL6UM | 0 / -8 | 5 | Partial capture |
| 08-28 17:08 | 40m | -12 / -10 | 9A4ZM | 0 / 0 | 6 | ✓ Full exchange observed |
| 08-28 17:07 | 40m | -7 / -15 | F5RRS | -8 / -8 | 5 | ✓ Full exchange observed |
| 08-28 17:05 | 40m | -7 / - | PE1NAO | - / -20 | 5 | ✓ Closing fragment |
| 08-23 18:04 | 80m | - / - | HA7KLA | +5 / - | 9 | Partial capture |
| 08-23 17:52 | 80m | -2 / - | IQ4JO | - / -4 | 6 | Partial capture |
| 08-23 17:52 | 80m | - / - | HF5A | +4 / - | 2 | Partial capture |
| 08-23 17:49 | 80m | - / - | UT7IA | +8 / - | 2 | Partial capture |
| 08-23 17:43 | 80m | -10 / -5 | UR5KC | +8 / +1 | 4 | ✓ Full exchange observed |
| 08-23 17:43 | 80m | -4 / -19 | HA1RJ | +10 / -1 | 9 | ✓ Full exchange observed |
| 08-23 17:43 | 80m | -9 / +6 | HA7FT | +6 / -2 | 7 | ✓ Full exchange observed |
| 08-23 17:43 | 80m | - / - | HA7KLA | +8 / - | 21 | Partial capture |
| 08-23 17:37 | 80m | - / - | HA7KLA | +6 / - | 4 | Partial capture |
| 08-23 17:36 | 80m | -8 / -15 | HA7WDD | +2 / 0 | 4 | ✓ Full exchange observed |
| 08-23 17:34 | 80m | - / -19 | DK7ZT | -5 / - | 4 | Partial capture |
| 08-23 17:31 | 80m | - / - | HA7KLA | +3 / - | 5 | Partial capture |
| 08-23 17:29 | 80m | -5 / -4 | SP9UPH | +10 / +4 | 4 | ✓ Full exchange observed |
| 08-23 17:28 | 80m | - / -17 | DK7ZT | -10 / - | 3 | Partial capture |
| 08-23 11:08 | 40m | - / - | HA5CVZ | -18 / - | 5 | Partial capture |
| 08-23 10:58 | 40m | - / - | HA5CVZ | -16 / - | 5 | Partial capture |
| 08-23 10:06 | 40m | - / -5 | HA6LT | -6 / - | 3 | ✓ Closing fragment |
| 08-23 10:01 | 40m | - / -11 | HA5OW | -5 / - | 4 | ✓ Closing fragment |
| 08-23 09:56 | 40m | - / -8 | HA7KOL | -12 / - | 3 | ✓ Closing fragment |
| 08-23 09:54 | 40m | - / +3 | HA2ESX | -10 / - | 3 | ✓ Closing fragment |
| 08-23 09:37 | 40m | - / - | SP5ALV | -7 / - | 8 | Partial capture |
| 08-23 09:35 | 40m | - / +7 | HA1LS | -7 / - | 2 | Partial capture |
| 08-23 09:23 | 40m | - / +3 | HA3FIC | -12 / - | 3 | ✓ Closing fragment |
| 08-23 09:21 | 40m | - / - | OK2ZCH | -14 / - | 2 | ✓ Closing fragment |
| 08-23 09:19 | 40m | - / -17 | DJ0BS | -19 / - | 3 | ✓ Closing fragment |
| 08-23 09:14 | 40m | - / -16 | DK7UY | -16 / - | 2 | ✓ Closing fragment |
| 08-23 09:12 | 40m | -13 / -4 | OE6TNO | -10 / -6 | 4 | ✓ Full exchange observed |
| 08-21 18:13 | 40m | - / - | HA1TIB | -9 / - | 4 | ✓ Closing fragment |
| 08-21 17:57 | 40m | -15 / -12 | DJ0ABM | -2 / -12 | 7 | ✓ Full exchange observed |
| 08-21 17:56 | 40m | - / -8 | DL1IP | -5 / - | 3 | ✓ Closing fragment |
| 08-21 17:53 | 40m | -20 / - | IU5VLR | - / -18 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 163345 -10 2285 HA3KU PD4FL 73 163445 +1 2945 HA3KU DL7ARV JO62 163500 -15 1531 IZ8PPI HA3KU R-12 163515 +3 2945 HA3KU DL7ARV JO62 (x2) 163600 -14 1531 IZ8PPI HA3KU R-12 163615 +3 2945 HA3KU DL7ARV JO62 (x5) 182600 -10 2029 HA3KU TA7MMI -14 (x2) 110600 -7 1346 HA3KU HA1BF +09 (x2)
UTC dB Audio Message 175500 -8 1978 IQ4JO HA3KU -04 175545 +2 1980 HA3KU HA7KLA KN06 (x4) 180400 -4 1978 CQ HA3KU JN86 180445 +7 1978 HA3KU HA7KLA KN06 (x9)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
CW
No CW receptions recorded for this callsign in the last 30 days.
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